STRUCTURE AND A MEASURING METHOD OF AN OPTICAL FIBER SENSOR USING LASER LIGHT FOR MEASURING A SUSPENDED MATERIAL, CAPABLE OF SIMPLIFYING A STRUCTURE AND REDUCING ERROR ACCORDING TO THE PROPERTY OF LENDS

摘要

PURPOSE: A structure and a measuring method of an optical fiber sensor using laser light for measuring a suspended material are provided to improve the accuracy of measurement due to filtering external light which is entered in a process of being collided to a suspended material by a filter.;CONSTITUTION: A structure of an optical fiber sensor using laser light for measuring a suspended material comprises: a cell block(10) which combined with an optical fiber guide(11) wherein a radiation optical fiber and a light accepting optical fiber(16,17) are inserted; a lamp unit(20) which the radiation optical fiber and the light accepting optical fiber are inserted and installed on the cell block; a cleaning unit(30) which washes the surface of the radiation optical fiber and the light accepting optical fiber; an oscilloscope which generates desired frequency for a measurement; an amplifier which amplifies the frequency signal; an oscillator which controls the intensity of the light; an oscillation adjusting unit; a filter which eliminates disturbance light flowing in the light accepting; a AC-DC converter; a voltage-current converter; a controller(50); and a PCB unit(40).;COPYRIGHT KIPO 2010